No question about it: Chubby Checker isn't too keen on sharing his famous moniker. Especially when the entity that shares his iconic stage name is a smart phone app that "enables women to estimate the size of a man's penis based on his shoe size."

The 71-year-old music legend has officially filed a lawsuit against both Hewlett-Packard and Palm after the two companies refused to acknowledge his 2012 cease and desist letter to stop using his name on the racy app.

Checker, real name Ernest Evans, is arguing that the two companies, who have offered the app for a long time, are violating his trademark on the name "Chubby Checker," and is seeking monetary compensation for damage to his reputation in addition to a complete shut down of the app.

According to "The Chubby Checker" description, the app is geared toward any "ladies out there … seeing someone new and wondering what the size of their member is."